480003991 has 2 divisors, whose sum is σ = 480003992. Its totient is φ = 480003990.

The previous prime is 480003989. The next prime is 480004003. The reversal of 480003991 is 199300084.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 480003991 - 2¹ = 480003989 is a prime.

Together with 480003989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (480003961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240001995 + 240001996.

It is an arithmetic number, because the mean of its divisors is an integer number (240001996).

Almost surely, 2^480003991 is an apocalyptic number.

480003991 is a deficient number, since it is larger than the sum of its proper divisors (1).

480003991 is an equidigital number, since it uses as much as digits as its factorization.

480003991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 480003991 is about 21908.9933817143. The cubic root of 480003991 is about 782.9756982606.

The spelling of 480003991 in words is "four hundred eighty million, three thousand, nine hundred ninety-one".